Finding the Third Proportional to 349,846,978.50 and 809,917,192.69

Step by Step Solution

1. Step 1: Write the proportion equation
   349,846,978.50 : 809,917,192.69 = 809,917,192.69 : x
2. Step 2: Convert to fraction form
   349,846,978.50/809,917,192.69 = 809,917,192.69/x
3. Step 3: Cross multiply
   349,846,978.50x = 809,917,192.69 × 809,917,192.69
4. Step 4: Simplify right side
   349,846,978.50x = 655,965,859,010,801,024
5. Step 5: Solve for x
   x = 655,965,859,010,801,024/349,846,978.50
6. Step 6: Final answer
   x = 1,875,007,930.11